Added SPDX

scripts/bench/aa_offset_check.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Does the coolant reading hold still when the run airflow comes on?
 
 With cool_aa_offset_counts at the machine's value the engine takes the

scripts/bench/accel_crash_probe.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """De-risk drill for the head-accelerometer crash detector.
 
 The LIS2HH12 on the head bus (i2c-3 @0x1e) carries an on-chip interrupt

scripts/bench/accel_fast.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Fast direct-I2C sampler for the two LIS2HH12s on the head bus (i2c-3).
 
 Unbinds st_accel from both for the capture (rebinds after), programs

scripts/bench/arc_tolerance_sweep.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """How fine an arc the one core can plan: a $12 ladder on the 9 in circle (on the board).
 
 Usage: arc_tolerance_sweep.py [--mode M] [tolerances...]

scripts/bench/bench_m2.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Milestone-2 motion-quality bench: factory-true rates/accels over TCP.
 
 Runs a bounded, return-to-start jog sequence against grblHAL on the board

scripts/bench/bench_phase2.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """End-of-data protocol bench.
 
 Motion-safe by construction: all four motors are locked via motor_lock (the

scripts/bench/build-feeder.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 # Cross-compiles the bench feeder for the factory board, borrowing the
 # Yocto cross toolchain from the ulfius recipe work directory.
 #

scripts/bench/build-forgectrl.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 # Cross-compiles forgectrl (the sibling repo) for the factory board,
 # borrowing the Yocto cross toolchain + sysroot from the forgectrl
 # recipe work directory (which carries ulfius, jansson, gnutls,

scripts/bench/build-glowforge.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 # Cross-compiles grblHAL-glowforge (the sibling driver repo) for the
 # factory board, borrowing the Yocto cross toolchain from the ulfius
 # recipe work directory. Regenerate a cleaned toolchain path with:

scripts/bench/bump_seek.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Accelerometer bump-seek prototype: creep toward a rail in bounded jog
 segments, detect the contact jolt on the head LIS2HH12, jog-cancel at once,
 back off. This is the homing-cycle detection loop, run standalone.

scripts/bench/check_pwm.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Software check: laser PWM carrier frequency from PWM2 registers.
 
 Expected with the fsl,extra-prescale=<13> fix: PWMCR prescaler divider = 13,

scripts/bench/cp_watchdog_timing.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Charge-pump watchdog timing (runs ON the board, as root).
 
 Measures the HV watchdog one-shot (U1-1, SN74AHC123A) directly from the

scripts/bench/critical_tier_drill.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Coolant critical-tier drill: the loop warmed through the lines by the
 engine itself, inside one run session.
 

scripts/bench/debug_kernel_drills.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Debug-kernel drills: lock correctness across glowforge.ko load/unload
 and a forced -EPROBE_DEFER unwind.
 

scripts/bench/fan_floor_measure.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Fan floor measurement: the numbers the airflow gates ship with.
 
 Two modes, both sampling the four tachometers (/status fans, rpm) and the

scripts/bench/fan_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Fan/coolant bench: snapshots the fan PWMs, tachs and coolant readings,
 drives M8 (cut-profile fans), then M9 (cooldown -> idle), and prints
 each snapshot for the tach readbacks to be judged. Needs the controller

scripts/bench/fdscan.sh

@@ -1,4 +1,8 @@
 #!/bin/sh
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 # Runs ON the board. While forgectrl spawns helper children (the update
 # check's curl, the snapshot's media-ctl/v4l2-ctl), scan every child for a
 # descriptor on the pulse device. Expected: none - only the controller

scripts/bench/feeder.c

@@ -1,3 +1,8 @@
+/*
+ * Copyright 2026 514 LLC d/b/a OpenGlow
+ * Written by Scott Wiederhold
+ * SPDX-License-Identifier: MIT
+ */
 /*
  * feeder.c - prove no-underrun continuous live feeding of the glowforge.ko
  * SDMA pulse ring under load.

scripts/bench/fire_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """FIRE-line drop-timing test - runs ON the board. Usage: fire_test.py A|B|U
 
 Stream: power(0) first byte (duty forced to ZERO before any FIRE bit -

scripts/bench/flow_characterize.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Characterize the coolant flow signature using the FACTORY temperature
 curve, and recommend flow-fault thresholds.
 

scripts/bench/flow_confirm_drill.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Bench drill for the flow-check suspicion/confirmation state machine.
 
 Runs ON THE BOARD (scp it over, then: python3 flow_confirm_drill.py).

scripts/bench/flow_escalate_drill.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Bench drill for the starved-re-check escalation path.
 
 Runs ON THE BOARD with the controller running. The cooling engine's

scripts/bench/flow_matrix.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Coolant flow-detection design matrix: heating cost AND detection
 precision across heater duty cycles and check durations.
 

scripts/bench/flow_recheck_char.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Characterize a SHORT periodic flow re-check for use DURING a job.
 
 Why a separate design from the job-start check: with the laser firing

scripts/bench/flow_sampler.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Board-side coolant sampler: prints 'elapsed,raw_down,raw_up' lines.
 Usage: flow_sampler.py <duration_s> <interval_s>
 Kept on the board so sampling cadence is not at the mercy of ssh

scripts/bench/flow_sustained.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Sustained-load test for periodic flow re-checks.
 
 Question: what does repeated interrogation cost thermally over a long

scripts/bench/flow_warm_validate.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Validate the flow check at a WARM loop baseline - the condition a
 real job actually presents.
 

scripts/bench/gate_a_kernel_drills.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """GATE A kernel drills - runs ON the board. Usage: gate_a_kernel_drills.py K1|K2|K3
 
 The pulse device must be free: stop forgectrl first

scripts/bench/gfbench.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Shared helpers for the bench tools that can run either ON the board or
 from a LAN host.
 

scripts/bench/laser_lifecycle_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Host-side verification of the operator-armed window lifecycle.
 
 Runs the native grblHAL_glowforge binary in null-sink mode (no

scripts/bench/laser_stream_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Host-side verification of the laser pulse-stream emission.
 
 Runs the native grblHAL_glowforge binary in null-sink mode with

scripts/bench/lens_stop_accel.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Lens stop detection by the head accelerometer: a bench drill.
 
 Steps the lens one half-step at a time from the hall's rising edge toward

scripts/bench/lens_travel.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Lens travel drill: where the carriage's stops sit against the hall edge.
 
 Runs on the board with the controller stopped (through forgectrl, so the

scripts/bench/live_fire_drills.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Live-fire bench drills - Phases 4, 5, 6. Runs on the board (the bench
 page) or from a LAN host, against grblHAL over TCP (port 23) and
 forgectrl over HTTP (:80, FORGECTRL_PORT overrides); the machine is GF_HOST, default 127.0.0.1.

scripts/bench/netblip.sh

@@ -1,4 +1,8 @@
 #!/bin/sh
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 # Runs ON the board while a cloud session is live: blackhole every
 # established :443 peer and break name resolution for N seconds, then
 # restore both. The cloud client must notice the dead socket, exit toward

scripts/bench/offset_probe.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Coolant-sensor offset probe: which actuator moves both thermistors?
 
 The coolant ADC reads about 1 C low on both sensors while the run airflow

scripts/bench/pacing_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Pacing-fix bench check - runs ON the board (localhost). Dry motion,
 no laser. Verifies:
 

scripts/bench/pgood_probe.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """LASER_PGOOD (J1_14) against the rest of the laser chain, through the
 kernel's readbacks.
 

scripts/bench/planner_blocks_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Host-side verification that a deep planner buffer starts.
 
 $398 (planner buffer blocks) is a reboot-required setting with a range of

scripts/bench/platform_drills.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Kernel platform drills - runs ON the board, with forgectrl stopped
 (/etc/init.d/forgectrl stop) so the pulse device is free. Restart forgectrl
 afterward. Usage: platform_drills.py deadman|rmmod|decay|led|all

scripts/bench/puls_profile.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Extract motion profiles from Glowforge pulse files.
 
 Decodes a factory .puls byte stream (one byte per machine tick) and reports

scripts/bench/pwm_hold.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Hold LASER_PWM at one duty value for a measurement window, then restore.
 Usage: pwm_hold.py [sar] [seconds]  (defaults: 8, 30)
 

scripts/bench/pwm_stream_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """LASER_PWM stream-path test - runs ON the board.
 
 Streams POWER BYTES ONLY (bit 7 set) through /dev/glowforge and lets the

scripts/bench/pwm_sweep.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """LASER_PWM scope test - runs ON the board.
 
 check: read-only - safety-chain readbacks + PWM2 register dump.

scripts/bench/raster_dry.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """A dry raster at top speed at each XY microstep mode (on the board).
 
 Usage: raster_dry.py [modes...]        (default: 8 16 32)

scripts/bench/resume_dark_lead.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Resume dark-lead characterization (runs ON the board, as root).
 
 Measures what the safety chain does across a pause and a resume, at pad

scripts/bench/temp_calibrate.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Coolant temperature spot-check helper (runs on the board or from a
 host; gfbench: GF_HOST).
 

scripts/bench/xy_mode_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Host-side verification of the XY microstep mode wiring.
 
 The XY microstep mode is one number in the shared config, xy_microsteps

scripts/bench/xy_pattern_accel.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """The XY microstep modes by the head accelerometer, the machine silent (on the board).
 
 Usage: xy_pattern_accel.py [modes...]        (default: 8 16 32)

scripts/bench/z_envelope_test.py

@@ -1,4 +1,8 @@
 #!/usr/bin/env python3
+# Copyright 2026 514 LLC d/b/a OpenGlow
+# Written by Scott Wiederhold
+# https://community.openglow.org
+# SPDX-License-Identifier:    MIT
 """Host-side verification that the Z envelope survives a settings write.
 
 The Z soft limit belongs to the driver, not to $20. glowforge_homing.c